Evidencia actual de intervenciones con ejercicio físico en factores de riesgo cardiovascular

Publicado en Rev Andal Med Deporte.2011; 04 :141-51 - vol.04 núm 04

Resumen

Los conocimientos acumulados en las últimas décadas sobre la relevancia clínica del ejercicio físico en la mejora y el tratamiento de las enfermedades y los trastornos cardiometabólicos, como resistencia a la insulina, diabetes mellitus tipo 2, dislipidemia, hipertensión arterial, obesidad, disfunción endotelial, etc., están poco dilucidados, en parte por la heterogeneidad de la población examinada y la variabilidad de los programas utilizados en los estudios. El objetivo de esta revisión es presentar las pruebas científicas, incluidos mecanismos celulares y moleculares del ejercicio físico, como terapia no farmacológica para el tratamiento y el manejo de factores de riesgo cardiovascular. La estrategia de búsqueda incluyó la revisión sistemática de la bibliografía biomédica acerca de intervenciones con ejercicio físico, aptitud física, actividad física, rehabilitación, factores de riesgo, aspectos bioquímicos y fisiológicos asociados al riesgo cardiovascular, con los términos de búsqueda siguientes: obesidad y sobrepeso, hipertensión arterial, dislipidemia, disfunción endotelial, resistencia a la insulina y diabetes mellitus. Para este fin, se realizó una búsqueda entre enero y diciembre de 2010 en las bases de datos LILACS, MEDLINE-PubMed y Cochrane Library. Los posibles mecanismos de acción se examinan de forma exhaustiva, y los principios para la prescripción del ejercicio son discutidos, centrándose en el tipo, la intensidad y las posibles contraindicaciones.
Palabras clave Riesgo cardiovascular. Enfermedades crónicas. Ejercicio físico. Prevención.

Introducción

Introducción Las enfermedades crónicas no transmisibles (ECNT), especialmente las derivadas del sistema cardiometabólico (hipertensión arterial [HTA], obesidad, diabetes mellitus tipo 2, enfermedad isquémica cardíaca, etc.), según la Organización Mundial de la Salud (OMS), se consideran un problema de salud pública que lleva a serias consecuencias sociales, psicológicas y físicas, y se asocian a un riesgo de morbimortalidad mayor por sus complicaciones1. El aumento poblacional, la urbanización, la natalidad y la disminución de las tasas de mortalidad parecen ser algunos de los principales factores involucrados en la aparición y la evolución de las ECNT. Actualmente se postula que las ECNT se deben a factores de riesgo cardiovasculares, algunos de ellos prevenibles, como la obesidad central, el sedentarismo, la resistencia a la insulina (RI), etc.2,3. Al mismo tiempo, otros estudios han mostrado que existe confluencia de varios factores endógenos y mecanismos en un mismo individuo4, entre los que sobresalen la disfunción endotelial (DE)5,6, la HTA7, la RI8, la dislipidemia9 y un elevado estrés oxidativo10. Para resolver la problemática de las ECNT, en los últimos tiempos, la OMS10,11 ha estimulado iniciativas para la vigilancia mundial de los factores de riesgo asociados, exhortando y apoyando a los países para el diseño y la realización de estudios poblacionales, para poner en práctica intervenciones saludables y para la aplicación de programas de vigilancia y planes de acción globales y regionales12. Es así como la implementación de programas con ejercicio físico (EF) aparecen como una alternativa de tratamiento y prevención de varios...

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Ramírez-Vélez, R.a; Da Silva-Grigoletto, M.E.b; Fernández, J.M.c

aICESI University. Cali. Colombia.

bAndalusian Center of Sports Medicine. Córdoba. España.

cLipids and Atherosclerosis Research Unit. Hospital Universitario Reina Sofía. Physiopathology of Obesity and Nutrition (CIBEROBN). Córdoba. España.